Why are sea otters called marine mammals?
Otters, seals, and sea lions are all mammals that nurse their young. Like penguins they live on land but feed at sea. They are also called "semi-aquatic" mammals to differentiate them from strictly sea species.
FOOD Otters are carnivores (meat eaters). They eat crustaceans (animals with shells), amphibians, reptiles, birds and insects, but mostly fish. They use their keen sense of touch to find and catch their underwater target. Their sensitive facial whiskers easily detect moving prey. This is especially useful in the murky water created by the otter searching for victims on muddy lake and stream bottoms. Otters typically hunt by diving and chasing fish, or by digging in the bottom of ponds and streams. Although otters are expert divers, hunting is not always successful. One study found that the success rate of finding food on a dive was less than 20%.
not that i know of but they were hunted for their fur in the 1900's
How fast does a sea otter swim?
Sea otters can swim at about about 1.5 miles per hour on the surface of the water on their backs, and about 5.6 miles per hour underwater. They are not considered very fast creatures, which makes them easy prey for humans and other large predators.
How can you help sea otters and the sea?
People are rescuing hurt and injured sea otters to help keep them from becoming extinct. They treat the animals and then release them back. People are also raising awareness about the sea otter, which encourages others to take an interest in them and do what they can to help.
How do otters open the shells of molluscs?
They have been observed lying on their back, on the water's surface, using a rock as a tool to open clams and/or oysters.
How many toes do otters have on each foot?
The ostrich is the only bird to have only two toes on each foot.
Yes they do eat pufferfish. But oddly, they are not posioned.
Animals that live in a stream included freshwater mollusks, fish, and in the Amazon River, freshwater dolphins.
Also, crayfish, trout, bass, clams, and freshwater mussels are found in streams. :)
Is a sea otter a tertiary consumer?
The sea otter is consumed by other mammals, so, no... it is not a tertiary consumer, but a primary or secondary consumer would be more accurate. Daally
What are the threats to the population of the river otters?
Yes, the river otter is endangered for a few reasons: many because of water pollution and oil spills (it damages their fur) and hunting. They were hunted for their fur which is very valuable.
Why do sea otters rest with their paws and hind flippers out of the water?
Sea otters rest like this because they do not have any fur on their paws. Keeping them out of the water stops them getting cold. You may also see them holding hands with other sea otters, or keeping their paws together as if they are praying, for the same reason.
How long does a sea otter live to?
10 to 15 years for a male
15 to 20 usually for a female good percentage can live to about 20, and one has lived all the way up to 28 in an aquarium. they have easily wearable teeth which can probably be the cause of the shorter lifespan.
Sea otters do not eat kelp but they do live in the kelp forests. They use the deep cover as protection from predators. Sea otters eat the red sea urchin that will destroy a kelp forest if left unchecked.
How long is the pregnancy of an otter?
A sea otter's pregnancy can last between 5 and 8 months. Otters can have one pup per year.
How many babies do otters have at one time?
Sea otters usually have a baby but at times it can also have twins
How many hours do otters sleep?
Sea otters often sleep on top of the water. Their fur has air pockets which keep them afloat and they tangle themselves in kelp or sea weed as to not drift to far from shore.
There are multiple species of seals, but all have fish as their main source of nutrition. While different types of fish or eels are preferred, seals will generally eat whatever is available. So, if starfish are that are available, it is possible seals would consume them.